TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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(8) Refer to figure 5-123 and torque tighten two drilled head cap screws to 275 pound-inches. Refer to figure 5-121 and torque tighten seven self-locking nuts to 275 pound-inches. (9) Refer to figures 5-120 through 5-117 and install the fan horizontal drive shaft. Center hose on drive shaft housing and tighten hose clamps securely. (10) Refer to figure 7-19 for the view of the engine as it appears at this stage of assembly. Note. To facilitate lifting the front fan drive housing assembly, an improvised lifting tool can be made from a piece of 3 / 8-in. dia bar stock and a discarded slotted fan nut. Bend bar stock to shape and securely weld ends of bar to nut as illustrated in figure 2-1. 1. 2. 3. Install improvised lifting tool (A) on fan vertical drive shaft. Apply light coat of gasket cement (MIL-C-10523 Ord.) on mounting base (B). Lower front fan drive housing assembly and associated parts on mounting base. Figure 7-18. Installing front fan drive housing assembly using improvised lifting tool. 7-14